Color former Blue 203

Color former Blue 203

CAS No. 98660-18-5
Purity: >98.0%(HPLC)
Chemical name: 3-(4-Diethylamino-2-hexyloxyphenyl)-3-(2-methyl-1-ethylindol-3-yl)-4-azaphthalide;
Application:thermal/pressure sensitive paper; thermochromic inks and pigments.